indicator
🇺🇸
/ˈɪndɪkeɪtər/
🇬🇧
/ˈɪndɪkeɪtə(r)/
a sign that shows what something is like or how it is changing
The economic indicator shows that business is growing.
a device that shows speed, pressure, or other measurements
The speed indicator on the dashboard shows how fast you are driving.
a light on a vehicle that flashes to show it is turning
Always use your indicator before changing lanes.